package com.jake.springboot.aop.aspect;

import lombok.extern.slf4j.Slf4j;
import org.aspectj.lang.JoinPoint;
import org.aspectj.lang.annotation.AfterReturning;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
import org.aspectj.lang.annotation.Pointcut;
import org.springframework.stereotype.Component;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import javax.servlet.http.HttpServletRequest;
import java.util.Arrays;

@Aspect
@Component
@Slf4j
public class ServiceAspect {

    private ThreadLocal<Long> START_TIME = new ThreadLocal<>();

    @Pointcut("execution(public * com.jake.springboot.aop.service.HelloService.*(..))")
    public void webLog(){}

    @Before("webLog()")
    public void doBefore(JoinPoint joinPoint) {
        START_TIME.set(System.currentTimeMillis());

        ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
        HttpServletRequest request = attributes.getRequest();

        // 记录下请求内容
        log.info("URL: {}", request.getRequestURL().toString());
        log.info("HTTP_METHOD: {}", request.getMethod());
        log.info("IP: {}", request.getRemoteAddr());
        log.info("CLASS_METHOD: {}", joinPoint.getSignature().getDeclaringTypeName() + "." + joinPoint.getSignature().getName());
        log.info("ARGS: {}", Arrays.toString(joinPoint.getArgs()));
    }

    @AfterReturning(returning = "ret", pointcut = "webLog()")
    public void doAfterReturning(Object ret) {
        // 处理完请求，返回内容
        log.info("RESPONSE: {}", ret);
        log.info("CURRENT THREAD: {}", Thread.currentThread().getName());
        log.info("SPEND TIME: {}", (System.currentTimeMillis() - START_TIME.get()));
    }

}
